CN104405815A - Front shock absorber for motorcycles - Google Patents
Front shock absorber for motorcycles Download PDFInfo
- Publication number
- CN104405815A CN104405815A CN201410679188.7A CN201410679188A CN104405815A CN 104405815 A CN104405815 A CN 104405815A CN 201410679188 A CN201410679188 A CN 201410679188A CN 104405815 A CN104405815 A CN 104405815A
- Authority
- CN
- China
- Prior art keywords
- front fork
- fork tube
- tube
- positioning pipe
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/02—Front wheel forks or equivalent, e.g. single tine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
- B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
Abstract
The invention provides a front shock absorber for motorcycles, which comprises a front fork tube, and the lower end of the front fork tube extends into a bottom barrel, and is in sliding fit with the bottom barrel; a positioning tube is located in the bottom barrel, the lower end of the positioning tube is fixedly connected with the lower end of the bottom barrel, and the upper end of the positioning tube is located in the front fork tube, and is in sliding fit with the front fork tube; a shock-absorbing spring is mounted in the front fork tube, and is located between the positioning tube and the front fork tube; hydraulic oil is loaded in the bottom barrel; the periphery of the lower sealed end of the front fork tube is gradually reduced from the top down, so that a sealing structure with a taper is formed, the taper is 2 to 6 degrees, and the joint between the tapered surface and the outer axial surface is provided with a round chamfer. When the front shock absorber for motorcycles operates, the shock-absorbing oil can easily enter the friction surface between the front fork tube and the bottom barrel to reduce friction, and thereby the comfort of the front shock absorber is increased.
Description
Technical field
The present invention relates to motorcycle damping device field, particularly relate to a kind of front fork tube and the motorcycle vibration absorber comprising described front fork tube.
Background technique
The application of front damper of motorcycle in motorcycle is very general, and it plays supporting vehicle body, transmitting tractive power, and the safety travelled with vehicle is closely bound up; It is again the quality of performance part, damping effect simultaneously, also can have an impact to the comfort of driver and passenger.
In front damping device structure originally, front fork tube stretches in end cylinder, form Spielpassung, front fork tube sealing end cylindrical adopts tapering be more than 10 degree angles and do not have rounding, this structure because of tapering large, damping oil can not well import in rubbing surface, and when causing vibration damper to move up and down, damping is large, and damping effect is poor.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of motorcycle vibration absorber, the front fork tube sealing end cylindrical wall tapering of this vibration damper is 2 to 6 degree, and rounding, solve oil in prior art and can not import rubbing surface very well, the problems such as when causing vibration damper to move up and down, damping is large, damping effect difference.
For achieving the above object and other relevant objects, the invention provides a kind of front damper of motorcycle, comprise front fork tube, end cylinder is stretched in described front fork tube lower end, forms Spielpassung; Positioning pipe is positioned at end cylinder, and described positioning pipe lower end and cylinder lower end, the end are fastenedly connected, and upper end is positioned at front fork tube and front fork tube is slidably matched; Damping spring is arranged in front fork tube, between positioning pipe and front fork tube; Cylinder is built with hydraulic oil at the end; Described front fork tube lower end cylindrical wall diminishes from top to bottom gradually, is formed with the seal structure of tapering, and tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.When the vibration damper of motorcycle works, damping oil is easy to enter the rubbing surface between front fork tube and end cylinder, reduces friction, and increases the travelling comfort of vibration damper.
Further, described positioning pipe upper end offers a circle groove, is provided with piston ring in described groove, this piston ring and front fork tube Spielpassung; Described front fork tube, positioning pipe, piston ring are coaxially installed.Piston ring can prevent damping oil from revealing.
Further, described piston ring adopts polyoxymethylene to make.Cost-saving.
Further, oil sealing is carried out by packing ring and screw in cylinder lower end, the described end, and described packing ring is aluminum packing ring.Cost-saving.
Further, the material that described uropore packing ring adopts is aluminium sheet L4-GB3880-1983.
As mentioned above, front damper of motorcycle of the present invention, has following beneficial effect:
Because front fork tube sealing end external conicity is 2 to 6 degree, and rounding, when the vibration damper of motorcycle works, damping oil is easy to enter the rubbing surface between front fork tube and end cylinder, reduces friction, and increases the travelling comfort of vibration damper.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of front fork tube sealing end in the embodiment of the present invention.
Piece mark explanation
1, front fork tube; 2, end cylinder; 3, positioning pipe; 4, damping spring; 5, piston ring; 6, packing ring; 7, screw.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
In order to can the present invention be described in detail, first, the concrete structure of damper clutch release slave cylinder of the present invention is explained:
As shown in Figure 1, the invention provides a kind of front damper of motorcycle, comprise front fork tube 1, described front fork tube 1 lower end is positioned at end cylinder 2, forms Spielpassung with end cylinder 2; Positioning pipe 3 is positioned at end cylinder 2, and described positioning pipe 3 lower end and end cylinder 2 lower end are fastenedly connected, and upper end is positioned at front fork tube 1 and is slidably matched with front fork tube 1; Damping spring 4 is arranged in front fork tube 1, between positioning pipe 3 and front fork tube 1; End cylinder 2 is built with damping oil; Described front fork tube 1 lower sealing end cylindrical wall diminishes from top to bottom gradually, and be formed with the seal structure of tapering, tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.
Wherein, described positioning pipe 3 upper end offers a circle groove, is provided with piston ring 5 in described groove, this piston ring 5 and front fork tube 1 Spielpassung; Described front fork tube 1, positioning pipe 3, piston ring 5 are coaxially installed.
Wherein, described piston ring 5 adopts polyoxymethylene to make.Tradition front shock absorber piston ring adopts teflon, and cost is very high.Now adopt polyoxymethylene to substitute the material that teflon does piston ring, do not affect the using effect of vibration damper after change, polyoxymethylene makes simple, and wear-resistance and oil-resistance again, can meet the needs in front shock absorber driving process completely, and reduce cost.
Wherein, oil sealing is carried out by packing ring 6 and screw 7 in cylinder 2 lower end, the described end, and described packing ring 6 is aluminum packing ring.The material adopted is aluminium sheet L4-GB3880-1983.After screw 7 is tightened, aluminium packing ring can produce distortion, the pit on end cylinder surface and screw 7 surface just fills by this distortion, thus stop interior oil toward leaking outside, front shock absorber originally uses copper washer, and cost is high, after using aluminium washer sealing, do not affect the using effect of vibration damper, and reduce cost; After change, the material of aluminium pad is aluminium sheet L4-GB3880-1983; Without oil leakage phenomenon after 1000000 endurance tests.
In the present embodiment, motorcycle vibration absorber working principle is: motorcycle is in rough road traveling, vibration damper constantly pumps and plays cushioning effect, front fork tube 1 is also thereupon constantly reciprocating up and down, front fork tube 1 outer surface and end cylinder 2 endoporus are Spielpassung, move up and down middle generation mechanical friction, in order to reduce friction, improve the travelling comfort of vibration damper, front fork tube 1 sealing end cylindrical adopts Small Taper 2 ~ 6 degree to add R angle (rounding), at this moment, damping oil imports in rubbing surface easily via the little conical surface, reduce friction, angle of cut place is R angle (rounding) simultaneously, oil-shear can not be fallen again, so substantially increase the travelling comfort of vibration damper.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (5)
1. a front damper of motorcycle, comprises front fork tube (1), and described front fork tube (1) lower end is positioned at end cylinder (2), forms Spielpassung with end cylinder (2); Positioning pipe (3) is positioned at end cylinder (2), and described positioning pipe (3) lower end and end cylinder (2) lower end are fastenedly connected, and upper end is positioned at front fork tube (1) and is slidably matched with front fork tube (1); Damping spring (4) is arranged in front fork tube (1), is positioned between positioning pipe (3) and front fork tube (1); End cylinder (2) is built with damping oil; It is characterized in that: described front fork tube (1) lower sealing end cylindrical wall diminishes from top to bottom gradually, is formed with the seal structure of tapering, and tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.
2. front damper of motorcycle according to claim 1, it is characterized in that: described positioning pipe (3) upper end offers a circle groove, piston ring (5) is installed, this piston ring (5) and front fork tube (1) Spielpassung in described groove; Described front fork tube (1), positioning pipe (3), piston ring (5) are coaxially installed.
3. front damper of motorcycle according to claim 1, is characterized in that: described piston ring (5) adopts polyoxymethylene to make.
4. front damper of motorcycle according to claim 1, is characterized in that: oil sealing is carried out by packing ring (6) and screw (7) in cylinder (2) lower end, the described end, and described packing ring (6) is aluminum packing ring.
5. the front damper of motorcycle how many according to claim 4, is characterized in that: the material that described packing ring (6) adopts is aluminium sheet L4-GB3880-1983.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679188.7A CN104405815A (en) | 2014-11-24 | 2014-11-24 | Front shock absorber for motorcycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679188.7A CN104405815A (en) | 2014-11-24 | 2014-11-24 | Front shock absorber for motorcycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405815A true CN104405815A (en) | 2015-03-11 |
Family
ID=52643466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679188.7A Pending CN104405815A (en) | 2014-11-24 | 2014-11-24 | Front shock absorber for motorcycles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405815A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372927A (en) * | 2018-12-24 | 2019-02-22 | 重庆巨九磊汽车零部件制造有限公司 | A kind of bottom cylinder |
| CN113602408A (en) * | 2021-09-15 | 2021-11-05 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541304Y (en) * | 2002-03-10 | 2003-03-26 | 重庆长安减震器有限公司 | Socket front damper |
| US20040124570A1 (en) * | 2002-12-31 | 2004-07-01 | Song Huh | Gas cylinder |
| CN2900333Y (en) * | 2006-03-31 | 2007-05-16 | 陆杰 | Changeable front shock damper of motorcycle |
| CN101117145A (en) * | 2007-09-28 | 2008-02-06 | 丁占鳌 | Minitype tricar and motorcycle front suspension |
| CN201071096Y (en) * | 2007-07-10 | 2008-06-11 | 江苏明星减震器有限公司 | Front vibration absorber of motorcycle |
| CN202225985U (en) * | 2011-08-12 | 2012-05-23 | 吴金钟 | Adjustable-damping vehicular front shock absorber |
| CN204253718U (en) * | 2014-11-24 | 2015-04-08 | 重庆市亮影工贸有限公司 | A kind of front damper of motorcycle |
-
2014
- 2014-11-24 CN CN201410679188.7A patent/CN104405815A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541304Y (en) * | 2002-03-10 | 2003-03-26 | 重庆长安减震器有限公司 | Socket front damper |
| US20040124570A1 (en) * | 2002-12-31 | 2004-07-01 | Song Huh | Gas cylinder |
| CN2900333Y (en) * | 2006-03-31 | 2007-05-16 | 陆杰 | Changeable front shock damper of motorcycle |
| CN201071096Y (en) * | 2007-07-10 | 2008-06-11 | 江苏明星减震器有限公司 | Front vibration absorber of motorcycle |
| CN101117145A (en) * | 2007-09-28 | 2008-02-06 | 丁占鳌 | Minitype tricar and motorcycle front suspension |
| CN202225985U (en) * | 2011-08-12 | 2012-05-23 | 吴金钟 | Adjustable-damping vehicular front shock absorber |
| CN204253718U (en) * | 2014-11-24 | 2015-04-08 | 重庆市亮影工贸有限公司 | A kind of front damper of motorcycle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372927A (en) * | 2018-12-24 | 2019-02-22 | 重庆巨九磊汽车零部件制造有限公司 | A kind of bottom cylinder |
| CN113602408A (en) * | 2021-09-15 | 2021-11-05 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
| CN113602408B (en) * | 2021-09-15 | 2022-11-01 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |